This method adds a new sheet cache instance to the external document
link for a specified sheet name. If a sheet cache instance already
exists for the specified name, then the existing instance is returned.
Note that a sheet name lookup is performed in a case-insensitive
fashion.
Parameter aSheetName
sheet name
Parameter DynamicCache
specify whether or not the cache can grow when
non-cached regions are queried. If true, querying a non-cached
cell in this sheet cache will allow Calc to try to access the source
document to fetch the value in first access. If false, the source
document will not be accessed, and the non-cached regions are treated
as empty cells.
Index corresponding to the external document link.
This index value corresponds with the external document
represented by an instance of
ExternalDocLink. This
value is stored within a formula token instance.
Each external document cache instance has a unique index value, and this
index value can be used to retrieve the corresponding external document cache
from the parent ExternalDocLinks instance.
